Invention Grant
US08085679B2 Apparatuses and methods for controlling bit rates in variable bit rate video coding
有权
用于控制可变比特率视频编码中比特率的装置和方法
- Patent Title: Apparatuses and methods for controlling bit rates in variable bit rate video coding
- Patent Title (中): 用于控制可变比特率视频编码中比特率的装置和方法
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Application No.: US11723492Application Date: 2007-03-20
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Publication No.: US08085679B2Publication Date: 2011-12-27
- Inventor: Jung-woo Lee
- Applicant: Jung-woo Lee
- Applicant Address: KR Gyeonggi-do KR Seoul
- Assignee: Samsung Electronics Co., Ltd.,Seoul National University Industry Foundation
- Current Assignee: Samsung Electronics Co., Ltd.,Seoul National University Industry Foundation
- Current Assignee Address: KR Gyeonggi-do KR Seoul
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: KR10-2006-0027206 20060325
- Main IPC: H04L1/00
- IPC: H04L1/00
Abstract:
A bit rate control method may include calculating a quality measure of a current frame and a mean of quality measures of two or more previous frames in order to calculate a deviation of the quality measure of the current frame from the mean of the quality measures of the two or more previous frames; comparing the deviation to a critical value measure; and controlling a quantization parameter in response to a result of the comparison. A bit rate control apparatus may include a quality measure calculator that calculates the quality measure of the current frame and the mean of the quality measures of the two or more previous frames in order to calculate the deviation; a comparator that compares the deviation to the critical value measure; and a quantization parameter setting unit that controls the quantization parameter in response to the result of the comparison.
Public/Granted literature
- US20070237223A1 Apparatuses and methods for controlling bit rates in variable bit rate video coding Public/Granted day:2007-10-11
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